Home / 90,980.00-136,482.76-31,802.21

Finding the Fourth Proportional to 90,980.00, 136,482.76 and 31,802.21

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Solution

The fourth proportional to 90,980.00, 136,482.76 and 31,802.21 is: 47,707.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,980.00 : 136,482.76 = 31,802.21 : x
  2. Step 2: Convert to fraction form
    90,980.00/136,482.76 = 31,802.21/x
  3. Step 3: Cross multiply
    90,980.00x = 136,482.76 × 31,802.21
  4. Step 4: Simplify right side
    90,980.00x = 4,340,453,656.60
  5. Step 5: Solve for x
    x = 4,340,453,656.60/90,980.00
  6. Step 6: Final answer
    x = 47,707.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.